Air-directing device



Jan. 12,1926. 1,569,667

T. NEILSON AIR DIRECTING DEVICE Filed April 2 1925 IVITIYESSES:

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THOMAS nnirsoiv; or GLASGOW, SCOTLAND.

AIR-DIBECTING DEVICE.

Application filed April 20, 1925. Serial No. 24,622;

To cilia/tom z'tmay OOncern. grooved coaming in which the said ring is Be it known that I, THOMAS Nnrnsom of rotatably mounted. ll 1 Cogan Street, Pollokshaws, Glasgow, One embodiment of the invention suitablefj icc-cland, a subject of the King of Great for a ships air pressure ventilating system 6 Britain, have invented certain new and will now be described," of example,

useful Improved. Air-Directing Devices, of with reference to the accompanying drawwhich the following is a specification. ings;-whereon This invention relates to air directing de- Fig. 1 is a sectional elevation ofthe air vices for use in connectionwith ventilating directing device. u 65 1 or air supply systems of the kindin which Fig. 2 is a sectional side viewthereof lookthe air can be directed as desired in any diing in the direction of thearrow in Fig. 1. rection varying through a portion of a hemi- Fig. 3 is a plan view of the same. sphere. The numeral 1 denotes the wall of a duct Hitherto, various forms ofdirecting deor trunk A-along which air under pressure 70 vices have been used. In one form, particuis passing while B is the space to which air larly applicable to the ventilation of spaces is to be supplied. aboard ship, the ventilator trunk has 0011- A circular opening iscut inythe wall nected thereto a short length of flexible and around its edge a circular coaining 2,- arnioured hose, which serves as a director comprising a metal ring 2 and two inwardly 75 and can be moved or bent to different posiprojecting flanges 2 and, 2, .is secured by tions within the range of a hemisphere to bolts 3, a groove being thus formed between deliver the air as required, but a separate the flanges. control valve has to beprovided with this Thenozzle comprises a hollow inetal cylarrangenient. inder 4 having across tube 5 of converging According to another form, the ventilator circular section, the tube forming fluid tight trunk has connected to it a short length of joints with the cylinder. The smaller end of piping pierced by a number of apertures the tube. 5 opens into the space B While the over which a' closely fitting sleeve having larger end is in theduct or trunk A.

corresponding apertures is fitted, the whole The cylinder 4 is rotatably carried in a 85 forming a hit and miss valve. Of course, bearing ring 6 which latter, in turn, is rowith such an arrangement thedirection of tata'bleinthe groove between the flanges flow of the air is limited to one plane.v 2 and 2? of the 'coaining 2.

Forms of ball and socket valves mounted The ring 6 is made in two separate metal in openingsin the wall of the air duct or portions 13 and 6 each having a circular 90 trunk have also been used, the socket in the outer edge 7 (indicated by a broken line in form of a bearing ring, being rigidly secured Fig. 3) a rectangular opening indicated by to the wall in the opening and having an ex the lines 8., 8*, 8, and8 in Fig. 3 and flanges tended part adapted to permit of closing a adjoining the edges of-the said opening. passage through the ball or nozzle in a cer- The side flanges 9 and 9 on the portion taiii position thereof. 6 and the side flanges 10 and 10 on the The object of the present invention is to portion 6 asshown in Fig. 1 are cylindrical provide an .improved air directing device surfaces conforming. closely toth'e contour which shall be simple in construction and in of the cylinder 4, the flange 9 being exmanipulation. I tended. The end flanges 11, shown in Fig. 2, 100 According to this invention'the air directare plane surfaces and are of the form ing device has in combination. a rotatable shown in Fig. 1 by'the broken lines 11 and bearing ring and a nozzle rotatable in the 11*. The flanges 11 fit closely over the said bearing ring, the rotational movements cylinder 4.

of the bearing ring and the nozzle being in- The two parts 6 and 6 of the ring 6 are 105 dependentand about axes at right angles to secured together by bolts 12 in the relative each other. positions shown in the drawings, with soft In a preferred construction the air directpacking 13 between them,' the flanges thus ing device comprises a rotatably mounted forming a part-cylindrical bearing in which hollow cylinder having a tubular passage the cylinder 4 is located. Layers of soft F therein; a part-cylindrical bearing ring havpacking 14, 14, are inserted between the bearing a circular. outer edge or flange; and a ing and the cylinder to form fluid tight oints, the cylinder being rotatable in the said bearing about its horizontal axis.

At the small end of the tube which conducts the air from the duct A to the space E a spider 15, carrying a. handle 16 is mounted, for convenience in operating the nozzle. 7

As hereinbetore stated, the nozzle is rotatably mounted by means of the circular part '2' of the bearing ring in the groove of the coaming 2 with the larger end of the tube 5 opening into the duct A and the smaller end opening into the space l3. Gonsequently, by combining rotation of the cylinder and tube in the bearing ring with rotation of the bearing ring in the coaming 2, the axis of the tube can be made to occupy any position substantially throughout a hemisphere, the only restriction being the interference of the ring with the openings of the tube. Should it happen that, in some position of the nozzle, the extended flange cal 9 interferes with the passage of air through the nozzle, the bearing ring can be rotated in the coaming until the flange 9 is clear or the openin The air supply can be regulated by causing the flange 9 to cover, to a greater or less extent, the end of the tube 5.

It will be readily apparent that an air directing device constructed in accordance with the foregoing is effective over a wide range of positions, the range being only restricted by the narrow part of the bearing ring, since, as before explained, the flange 9*, provided for closing the nozzle, need .not restrict the opening. The construction and manipulation of the device are comparatively simple.

With an air directing device as hereinbetore described there is little or no tendency for the nozzle to shift its position due to vibration oi its mounting, this being liable to occur with directing devices of the ball and socket type.

The invention is applicable not only to pressure systems of ventilation but also to suction systems and the director can be used for directing air from a space B to a space A if required.

Having now fully described my invention what 1 claim and desire to secure by Letters Patent is 1. An air directing device comprisin combination, a rotatable bearing lin means supporting said bearing ring, a part cylindrical socket on said bearing ring, and a nozzle rotatable in said socket and con or in sisting of a cylinder havinga tubular passage therethrough, the bearing ring and cylinder being independently rotatable about mutually perpendicular axes.

2. An air directing device comprising, in combination, a bearing ring, a fixed coaming in which said bearing ring is rotatable, a part cylindrical socket forming part of said bearing ring, and a nozzle rotatable in said socket and consisting of a cylinder having a tubular passage therethrough, the bearing ring and cylinder being independently rotatable about mutually perpendicular axes.

3. An air directing device comprising,-in combination, a bearing ring, a fixed circular grooved coalning in which said bearing ring is rotatable, a socket with fiat sides forming part of said bearing ring, a nozzle rotatable therein and consisting of a cylinder having a tubular passage therethrough, said bearing ring and said cylinder being independently rotatable about mutually perpendicular axes, and means for closing wholly or partially said tubular passage in certain positions of the cylinder relative to the socket. i

4. An air directing device comprising, in combination, a bearing ring, a fixed circular grooved coaming in which said bearing ring is rotatable, a socket forming part of said bearing ring, a nozzle consisting of a cylinder having a tubular passage there through rotatable in said socket, and an extension of the wall of the socket adapted to close wholly or partially said tubuar passage in certain positions thereof relative to said socket, said cylinder and said bearing ring being independently rotatable about mutually perpendicular axes.

5. An air directing device comprising, in combination, a bearlng ring, a fixed circu lar grooved coaining in which said bearing ring is rotatable, a socket forming part of said bearing ring which is made up of two portions joined together in the plane of the coaming, a. nozzle consisting of a cylinder having a tubular passage therethrough ro tatable in said socket, and an extension of the wall of the socket adapted to close wholly or partially said tubular passage in certain positions thereof relative to said socket, said-cylinder and said bearing ring being independently rotatable about mutually perpendicular axes.

In testimony whereof I aflix my signature.

THOMAS NnILsoN. 

